Transformers: Beast Wars Transmetals 64 Cheats (Nintendo 64)

Select versus or arcade mode. Highlight Cheetor, then hold Z and press A at the character
selection screen. Press Left or Right to go through his colors to get to Ravage and
Tigatron.

Defeat Megatron X in arcade mode without using any continues to unlock him as a playable
character.

Select versus or arcade mode. Highlight Tarantulas, then hold Z and press A at the
character selection screen. Press Left or Right to go through his colors to get to
Blackarachnia.

Successfully complete the game with Megatron with no time limit. You will have to fight
Megatron X at the end.

Select versus or arcade mode. Highlight Waspinator, then hold Z and press A at the
character selection screen. Press Left or Right to go through his colors to get to
Starscream.

Successfully complete the game, including Megatron X to unlock his best armor.

 Game Shark Codes 

Note: You must have a 3.0 or higher version of the Game Shark
to use these codes.

Successfully complete the game, including Megatron X to unlock his best armor.

Press C-Right to keep firing your gun until you get a Energon Strike. Transform into
vehicle mode. Then transform into beast mode and keep pressing C-Right rapidly until your
Energon bar is filled. Get close to Megatron X. Repeat this until you defeat Megatron X
twice.